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30984055 = 513214691
BaseRepresentation
bin111011000110…
…0011101110111
32011022011010121
41312030131313
530412442210
63024032411
7524234344
oct166143567
964264117
1030984055
1116542863
12a462707
13655ab7b
1441877cb
152ac06da
hex1d8c777

30984055 has 8 divisors (see below), whose sum is σ = 37216944. Its totient is φ = 24763200.

The previous prime is 30984043. The next prime is 30984061. The reversal of 30984055 is 55048903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30984055 - 29 = 30983543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30984055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4260 + ... + 8950.

It is an arithmetic number, because the mean of its divisors is an integer number (4652118).

Almost surely, 230984055 is an apocalyptic number.

30984055 is a deficient number, since it is larger than the sum of its proper divisors (6232889).

30984055 is a wasteful number, since it uses less digits than its factorization.

30984055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 30984055 is about 5566.3322753857. The cubic root of 30984055 is about 314.0841965242.

The spelling of 30984055 in words is "thirty million, nine hundred eighty-four thousand, fifty-five".

Divisors: 1 5 1321 4691 6605 23455 6196811 30984055